Optimizing the Design of the Spring Plate in the Girth Gear of a Rotary Cement Kiln

سال انتشار: 1404
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 69

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شناسه ملی سند علمی:

JR_IJE-38-10_021

تاریخ نمایه سازی: 26 فروردین 1404

چکیده مقاله:

In cement production, rotary kilns are essential, particularly in clinker manufacturing. The spring plates, fabricated from St۳۷-۲ steel, connect the girth gear to the kiln shell and play a crucial role in the structural integrity of the kiln. This study numerically analyzes and optimizes the stress distribution across spring plates used in the Kufa cement plant (Najaf, Iraq), under varying operational conditions. Using finite element modeling (ANSYS ۲۰۲۲/R۱), stress distributions for the standard spring plate design (S), three existing designs (d۱, d۲, d۳), and three proposed designs (P۱, P۲, P۳) were compared. Sensitivity analysis was conducted across five filling conditions: (۱) ۱۰۰% design load, (۲) ۱۰۰% practical load, (۳) ۹۰% practical load, (۴) ۸۰% practical load, and (۵) ۷۰% practical load. The proposed P۳ design demonstrated the best performance, reducing the maximum stress concentration at critical locations by ۵۱.۸۶% compared to the standard design, with maximum stress values of ۱۵۴.۰۶ MPa (P۳) versus ۳۲۰.۰۸ MPa (S) under ۱۰۰% design load. The sensitivity analysis confirmed that stress levels decreased with reduced kiln loads, enhancing the service life of the spring plates. This study underscores the importance of design modifications to minimize stress concentration and improve the operational durability of rotary kilns.

نویسندگان

A. Fakhri Shakir AL-Obaidi

Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

A. Moazemi Goudarzi

Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

L. Sadiq Alansari

Mechanical Engineering Department, Faculty of Engineering, University of Kufa, Kufa, Iraq

F. Morshedsolouk

Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

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